What this means
The IEEE assigned the MA-L block B4174D to PROJECT MONITOR INC. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting B4:17:4D, it is PROJECT MONITOR INC hardware.
Frequently Asked Questions
Who owns MAC prefix B4174D?
B4174D is registered to PROJECT MONITOR INC in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. PROJECT MONITOR INC's block covers 16,777,216 addresses.
What devices use B4174D?
Any network device with a MAC address starting B4:17:4D was manufactured by or for PROJECT MONITOR INC.